Streaming media code rate control method, streaming media code rate control system and streaming media server

Abstract

The invention discloses a streaming media code rate control method, a streaming media code rate control system and a streaming media server. Cache state information sent by a terminal is received, and an idle cache of the terminal can be calculated in real time according to the cache state information and an initial code rate of a media stream; the code rate of the media stream can be determined according to the idle cache of the terminal and media stream code rate fluctuation correlation. According to the streaming media code rate control method, the streaming media code rate control system and the streaming media server, through calculating the idle cache of the terminal and the code stream fluctuation correlation in real time, the code rate is determined, code stream cache can be prevented from overflowing, moreover, the cache utilization rate can be further effectively improved, smooth processing on the code stream is further carried out, pressure of an instant peak value code rate exerted on a transmission network and a server bandwidth can be effectively reduced, video transmission quality is guaranteed, and user experience is improved.

Description

technical field [0001] The present invention relates to the technical field of streaming media playback, in particular to a method, system and streaming media server for controlling bit rate of streaming media. Background technique [0002] Streaming media technology, also known as streaming media technology, compresses continuous video and audio information and puts them on the website server, allowing users to watch and listen while downloading. Advance the next piece of data as a buffer. Using broadband network, IPTV integrates Internet, multimedia, communication and other technologies to provide home users with a variety of interactive services including digital TV. It can well adapt to the current trend of rapid network development and fully and effectively Make use of network resources. With the development of streaming media technology, video quality is getting higher and higher. How to ensure the smooth transmission of transport stream TS on IP network has always b...

AI Technical Summary

Problems solved by technology

The existing IPTVVBR (VariableBitrate, variable bit rate) transmission flow control is usually carried out through the buffer data volume (x-BurstSize) that needs to be adjusted reported by the STB terminal PLAY command. When the cache data volume exceeds the upper limit or is lower than the lower limit, it is required to The server reduces or increases the amount of data based on the current streaming rate, which makes it difficult to guarantee the quality of video transmission and greatly reduces the user experience

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